You don't need to invest anything. In fact, there are no coins to buy at the moment. This is the rewards program that HealthyWorm (WORM) will be using for the forums and other community activities. This way we will have a separate section for this, as well as not diluting the WORM (different coin) market with giveaways

Basically, the only way you can actually get this coin is by using the forum. You couldn't even buy them if you wanted to